Re: Overpowering the Clutch no matter what.
Tighten the flower nut down as much as possible to where the clutch still works normally.
I've always had this problem with my race engines.
Some clutch shaft main springs aren't as strong as others, & you've already done all the sanding & cleaning the pads; so if there's still slipping?, try swapping out the main spring.
Last edited by Venice Motor Bikes; 01-05-2017 at 02:40 PM.